Files can now be included with the following syntax:
INCLUDE "path.link"
The maximum include depth is 5.
Fixed linkerscript parser and lexer error messages so that they are more
informative (show file and line of the error).
Man page updated.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
Replace spaces by tabs for consistency. The rest of the codebase uses
tabs, so the linkerscript parser has to change.
Removed trailing tabs in all codebase.
Signed-off-by: AntonioND <antonio_nd@outlook.com>
Instead of converting from ROMX to ROM0 with -t and preventing the use
of WRAMX at all with -w, make each option prohibit the type of section
they affect.
This is a good idea because it can prevent a developer from making
mistakes when switching from using the options to not using them.
Generally, a change from using one single bank to multiple banks is
something that will take a lot of effort, and forgetting sections in
ROM0 or WRAM0 will only make the free space of those areas to be
reduced (and maybe prevent compilation), but it won't cause any problems
because of a forgotten bank swap in the code.
Signed-off-by: AntonioND <antonio_nd@outlook.com>
Even though the bank number was read from the linkerscript and the
linker verified that each section could be mapped in the final rom, the
bank number was never actually set by the linkerscript parser.
Signed-off-by: AntonioND <antonio_nd@outlook.com>
To make the behaviour of the linkerscript consistent, every section read
from an object file must have an unique name. This is needed as the
linkerscript uses the name of sections to place them and it expects
every section to have a different name.
This doesn't break compatibility with the old behaviour that allowed to
continue sections if they had the same name, bank number and starting
address. That's still allowed because `rgbasm` outputs a single section
if this functionality is used, it is transparent to `rgblink`.
Signed-off-by: AntonioND <antonio_nd@outlook.com>
Yay, more refactoring of the section assignment… This version of the linker will allocate sections by their alignment, and then by their size (largest first, in both cases).
In future, this may be improved by using dense packing (as suggested by #83).
Deduplicates and generalises a lot of code in assign.c:
- Replace area_AllocAbs*AnyBank() with area_AllocAbsAnyBank() function
that accepts a section type parameter
- Replace area_Alloc*AnyBank() with area_AllocAnyBank()
- Replace FindLargest*() with FindLargestSection()
- Replace Assign*Sections() with AssignBankedSections()
- Add VerifyAndSetBank(), which enables bank checks (and addition with
BANK_*) to be centralised
- Refactor the initialisation of AssignSections(), removing some magic
numbers and only setting MaxAvail[i] once
- Overhaul the duplicated cases throughout AssignSections()
fatalerror() prints a given string to stdout and exits(5). It
cannot format text, so there was a string temptext used with
sprintf() to format text and pass it to fatalerror().
errx() can format text, and it prints to stderr.
As a bonus, this fixes the linking warnings from use of sprintf().
Merging lai's source with this one is very irritating because
they have different indentation styles. I couldn't find what profile
vegard used for his version, so I used these flags (which should bring
the source close to KNF):
-bap
-br
-ce
-ci4
-cli0
-d0
-di0
-i8
-ip
-l79
-nbc
-ncdb
-ndj
-ei
-nfc1
-nlp
-npcs
-psl
-sc
-sob
